Galactic Space War is an exciting space invaders game designed for iPhone users, featuring vibrant graphics and a variety of alien types. Players encounter different aliens that attack from multiple directions, including side attackers and those that shoot from above. Notably, the game includes red aliens with double the health and larger aliens that, while slow, deliver powerful attacks, adding depth to the gameplay.

The game allows players to control their ship by moving it with their finger while automatically shooting at the aliens. Players can earn points to unlock four unique upgrades in the shop, enhancing their gameplay experience. As players progress and accumulate points, the game becomes increasingly challenging, encouraging competition among friends to achieve the highest score.